November 1 falls during the World Cup, when Cameron Munster and 10 other Kangaroos players can begin speaking with rival clubs.
The 32-year-old Queensland captain said a move to Sydney is now a genuine possibility, unlike earlier in his career.
He recalled that "the bright lights would have chewed me up" back then, but said he is now more mature and better able to withstand scrutiny.
Munster said he was entering the market only because Melbourne had not decided who would replace his good friend Craig Bellamy as coach in 2028.
A return to Queensland appeals less to him, as he does not want to block a young playmaker's path at one of the state's four NRL clubs.